Smart Way of Learning Math

Free Practice 6.NS.B.2 – 9000602

Given a sequence: $17$, $24$, $31$, $38, \cdots $, which number is not in the sequence?A. $378$A. $378$B. $206$C. $52$D. $325$E. $360$

1. Because the sequence is increased by $7$ starting from $17$, the elements in the sequences have a remainder $3$ when a number is divided by $7$.All the numbers except $378$ have a remainder $3$ when numbers are divided by $7$.So, the answer is $378$. No More Steps